need help with strange transmission problem - Ford Powerstroke Diesel Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 9 Old 10-10-2012, 05:09 PM Thread Starter
Member
 
Join Date: Jan 2011
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
need help with strange transmission problem

It is hard to explain so here goes. Today on my way home, I stopped at a stop sign. When I accelerated everything was fine until I got to 35mph. All of a sudden it feels like it downshifts hard and the brakes are applied. I let off the gas and at about 25mph it feels like it downshifts again. I have to slow down to 15mph and it goes back to normal. If i accelerate again it will go up to 35 then does it again. If I try to accelerate after it does this the turbo spools up and the engine tries but can not speed up. It seems like the TC is locked up the whole time. I put it in 2nd gear and drove the rest of the way home at 25mph. When I got out of the truck I could smell tranny fluid. Please help me.

Last edited by schemi; 10-10-2012 at 05:18 PM.
schemi is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 10-10-2012, 05:20 PM Thread Starter
Member
 
Join Date: Jan 2011
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
this is a 2001 f350 by the way. The only mods I have done are tymar intake, wicked wheel and bellowed up pipes. The OD light is not flashing.
schemi is offline  
post #3 of 9 Old 10-10-2012, 09:25 PM
Compression Ignition Addict
 
timmyboy76's Avatar
 
Join Date: Aug 2010
Posts: 1,891
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Thanks: 0
Thanked 20 Times in 20 Posts
Feedback Score: 0 reviews
being an 01, i'd put $$$ on, that the diode took a dump..(inside trans). Google 7.3 tranny diode, you'll see what im talk'n about....unfortunately, only way to repair is a new/rebuilt trans.

99.5 x-cab 7.3l, 6spd, 161k miles.....
timmyboy76 is offline  
post #4 of 9 Old 10-10-2012, 10:14 PM Thread Starter
Member
 
Join Date: Jan 2011
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I have been reading about that. I haven't read of anyone else with the same symptoms. how can I tell that is the problem for sure?
Thank you
schemi is offline  
post #5 of 9 Old 10-11-2012, 07:56 AM
Banned
 
Join Date: Sep 2008
Location: Fort Bragg, NC/Buff, NY/Midlothian, VA
Posts: 5,630
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by timmyboy76 View Post
being an 01, i'd put $$$ on, that the diode took a dump..(inside trans). Google 7.3 tranny diode, you'll see what im talk'n about....unfortunately, only way to repair is a new/rebuilt trans.
I'm thinking the same thing also.
85_305 is offline  
post #6 of 9 Old 10-13-2012, 10:27 AM Thread Starter
Member
 
Join Date: Jan 2011
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
To remove the transmission do I need to remove the downpipe? should I remove the transfer case or take it out together? I dont have a tranny jack. I am going to call around an see if I can find a rental. Any ideas if I cant find one? One more question. Do the tc bolts only line up one way? On my 74 dodge the tc bolts only line up one way to the flexplate.
schemi is offline  
post #7 of 9 Old 10-13-2012, 05:51 PM
Compression Ignition Addict
 
timmyboy76's Avatar
 
Join Date: Aug 2010
Posts: 1,891
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Thanks: 0
Thanked 20 Times in 20 Posts
Feedback Score: 0 reviews
i dont think so. I've seen wherethey just remove the entire assy...trans and transfer. Gotta get a trans jack bud, that pigs' HEAVY and ackward.

99.5 x-cab 7.3l, 6spd, 161k miles.....
timmyboy76 is offline  
post #8 of 9 Old 10-14-2012, 06:43 PM
Powerstroke.org Fanatic
 
01PowestrokeDSL's Avatar
 
Join Date: Mar 2007
Posts: 114
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I guarantee that timmyboy is right...same thing happened to my 01'... Get ready for a tranny rebuild.


Sent from my Autoguide iPad app

01 F250 XLT
F6 DP Chip
AFE Stage II
4" Magnaflow Exhaust
10.5" Lift on 38X15.50 MT Baja Claws
01PowestrokeDSL is offline  
post #9 of 9 Old 10-14-2012, 06:43 PM
Powerstroke.org Fanatic
 
01PowestrokeDSL's Avatar
 
Join Date: Mar 2007
Posts: 114
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I left the downpipe n dropped the transfer case with the tranny...


Sent from my Autoguide iPad app

01 F250 XLT
F6 DP Chip
AFE Stage II
4" Magnaflow Exhaust
10.5" Lift on 38X15.50 MT Baja Claws
01PowestrokeDSL is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome